内齿强力珩齿与蜗杆砂轮磨齿是实现齿轮精加工的主要工艺方法,系统深入地研究两种齿轮精加工工艺的工艺原理,洞悉二者在齿面磨削纹路的形成机理,成为齿轮精加工工艺研究的热点问题。基于空间曲面啮合原理,提出一种离散点齿面模型构建方法,分别建立内齿珩磨轮与蜗杆砂轮的齿面接触方程,并依据接触区离散点处的相对滑擦速度建立珩削纹路与磨削纹路模型。经过滚齿、渗碳淬火的工件齿轮作为精加工的毛坯件,给定相应的珩齿和磨齿工艺参数,在内啮合强力珩齿机与蜗杆砂轮磨齿机上进行精加工试验,并对齿轮的轮齿进行三维形貌检测试验,通过对比分析试验结果与预测模型,两种工艺的齿面纹路的预测模型与试验结果高度吻合,结合对三维形貌数据指标的对比分析,得出两种工艺对齿面几何精度的影响规律,研究结果为齿轮精加工工艺的提升提供了理论依据。
韩江
,
袁彬
,
王东岭
,
梁惠
,
夏链
. 内齿强力珩齿与蜗杆砂轮磨齿切削机理对比分析与试验研究[J]. 机械工程学报, 2018
, 54(11)
: 205
-213
.
DOI: 10.3901/JME.2018.11.205
Gear honing process and gear grinding process are the main techniques of gear finishing. It is one of the significant research fields to investigate the process principle and know clearly about the formation mechanism of tooth surface texture of gear honing and grinding process. A method of sampling points tooth surface modelling is presented based on spatial conjugate meshing theory. Based on this method and theories, the tooth surfaces contact areas of honing wheel and worm grinding wheel are built respectively. The honing path and grinding path models are generated according to the velocity vector of the sampling points on tooth surface. The roughing processed and heat treated work-piece gears are grounded as the gear blanks of finishing process, gear finishing are carried out on CNC gear honing machine and gear grinding machine, the 3D topography experiments of gear teeth are conducted to verified the predicted model of the tooth surface path of each gear finishing process. The result shows that the predicted model display some similar texture features with the experiment result. Combined with the comparative analysis of the index data of 3D topography, the influence law of gear grinding and gear honing on geometric precision of tooth surface is finished. The results of this research have important theoretical and instructional significance for the improving of gear honing and grinding process.
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